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TBRI-PT (ISDN Trunk-Side BRI Port)
Issue 1 June 2005 2205
i. Error Type 1281: this error occurs when the BRI NPE Crosstalk test (#617) has failed. The
test will be repeated every 15 minutes until it passes. Follow normal trouble shooting
procedures for BRI NPE Crosstalk test (#617). If this does not fix the problem, follow normal
escalation procedures.
j. Error Type 1537: the board received a bad Cyclical Redundancy Check (CRC) over the D
channel. This error is reported on a per-port basis. When the CRC errors exceed 5 within 15
minutes, the port is taken out of service for 5 seconds. If 5 more CRC errors are received
within 15 minutes of the first set of 5 errors, the port is taken out of service for 1 minute. If 5
more CRC errors are received within 15 minutes of the previous 5, the port is taken out of
service for 15 minutes.
This error is most likely due to a problem with backplane wiring, a noise source, or no
termination (an open circuit). It usually does not indicate a problem with the circuit pack.
1. Check the backplane wiring.
2. If the problem persists escalate the problem.
k. Error Type 1538: this error occurs when a frame with a bad CRC is received over the TDM
D-channel by the BRI trunk board. This error only occurs on a system that switches the
packet implementation of the D channel over the TDM bus. This error indicates an off-board
problem related to the packet implementation of the TDM D channel (R6.2 and later).
l. Error Type 1793: the BRI Port Local TDM Loop Around test (#619) failed. Run the long test
sequence, and pay particular attention to the results of the BRI TDM Port Loop test (#619).
m. Error Type 2049: the Layer 2 Link Query failed. The test is repeated every 15 minutes until
it passes.
n. Error Type 2305: the Remote Layer 3 Query failed. The test is repeated every 15 minutes
until it passes.
o. Error Type 3073: a frame of information had to be repeated or deleted. Slips usually occur
when the received bit rate is not synchronized with the TDM bus clock.
p. Error Type 3585: the circuit pack detected an overflow of its receive buffers. This error
occurs only a system that switches the packet implementation of the D channel over the
TDM bus. This error indicates an on-board problem related to the packet implementation of
the TDM D channel (R6.2 and higher). This error is logged only.
q. Error Type 3586: each port can support up to three Terminal Endpoint Identifiers (TEIs).
Each channel on the port can request a TEI assignment from the switch if it supports
ISDN-BRI TEI assignment procedures. If switch services gets a request for a fourth TEI on
a port, it reports this event to maintenance software and initiates TEI check procedures on
the port. Check to see if the correct number of channels are administered for this port.
The user side supports automatic TEI assignment by the network. Both fixed and automatic
TEI assignment are supported on the network side.
r. Error Type 3587: Service Profile IDentifier (SPID) value is invalid or is a duplicate of
another SPID that is already initialized at Layer 3 on the port. SPIDs are not used on the
TN2185 circuit pack. However there will be related events.